
Dongfeng Tianlong EECU has a wiring issue, causing the Vehicle Control Unit (VECU) to fail in receiving signals from the Engine Control Unit (EECU). Below is relevant information about EECU: Composition of EECU: The EECU computer board in vehicles consists of a microprocessor (CPU), memory (ROM, RAM), input/output interfaces (I/O), analog-to-digital converter (A/D), as well as shaping and driving circuits, all made up of large-scale integrated circuits. Function of EECU: The primary function of EECU is to control components such as the exhaust brake solenoid valve, electric fan, and fuel injector solenoid valve by monitoring information from various sensors on the engine and data sent by VECU via the CAN bus, ensuring the engine operates normally. The main role of EECU is to collect various signals and control the computer to ensure the engine runs properly.


